-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 couldn`t reproduce this behavior on my machine... my environment: - linux 2.6.16.27 - Pentium M (centrino) - md5sum (GNU coreutils) 5.96 - cryptsetup-luks 1.0.3 - partition encryptet with aes-cbc-essiv:sha256 (external hd) maybe your algorithm (twofish) produce this failure? try to create an aes-encryptet partition... massacre Zenon Panoussis schrieb: > Hello all > > Running rsync -vvac I kept getting checksum mismatches. Trying > to isolate the cause, I was faced with this: > > [root@njoerd lsat]# md5sum 006069_15meROT.tif > 0ce8093accb771c66a0154b4d55fd90b 006069_15meROT.tif > [root@njoerd lsat]# md5sum 006069_15meROT.tif > fc2caf002b693c1283a10536fa976358 006069_15meROT.tif > [root@njoerd lsat]# md5sum 006069_15meROT.tif > 9ff9da9e1759caa50a5145b668ef9231 006069_15meROT.tif > [root@njoerd lsat]# mv 006069_15meROT.tif /root/ > [root@njoerd lsat]# cd /root/ > [root@njoerd ~]# md5sum 006069_15meROT.tif > 80ff8ae8dc281288ec2ece20f9d4087a 006069_15meROT.tif > [root@njoerd ~]# md5sum 006069_15meROT.tif > 80ff8ae8dc281288ec2ece20f9d4087a 006069_15meROT.tif > [root@njoerd ~]# md5sum 006069_15meROT.tif > 80ff8ae8dc281288ec2ece20f9d4087a 006069_15meROT.tif > > The directories lsat and root are on the same drive, on different > partitions. lsat is encrypted with dm-crypt (twofish), root is not. > I've tested the RAM as best I could and it seems to be good. fsck > reports "all well" and the problem manifests itself anywhere on > the partition, not in any one specific place. > > This happens all the time and it only happens with big files. For > instance, this tiff is 680 MB. The system is centos 4.3 running > kernel 2.6.9-34.0.2.EL (with redhat backporting things kernel > versions mean very little, but at least it's surely newer than > 2.6.4-rc2). > > Could it be dm-crypt glitching? Has anyone seen anything similar? > In about two years of routinely using dm-crypt I've never had file > corruption or any similar oddities before. Then again, I don't know > what else I could blame for the md5sum nuttiness above. > > Z > > > > --------------------------------------------------------------------- > dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ > To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx > For additional commands, e-mail: dm-crypt-help@xxxxxxxx > > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFE7wZzcr3gJHvzc5cRAjz1AJ4y0ZhKImnqHBTQkm2KWK4PCOpb/QCdFnCq Ukbdbw52K/Q7dxM9hZwMGxI= =k0WC -----END PGP SIGNATURE----- --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
